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Here is a list of 2025 holidays, special events, big games, cultural milestones and other key dates to mark on your calendar, including information on the Super Bowl and movie releases.
This is an accepted version of this page This is the latest accepted revision, reviewed on 31 January 2025. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...
The following diagram is provided as an overview of and topical guide to the human nervous system: Human nervous system. Human nervous system – the part of the human body that coordinates a person's voluntary and involuntary actions and transmits signals between different parts of the body. The human nervous system consists of two main parts ...
Structure of the nervous system; Development of the nervous system; The spinal cord or medulla spinalis; The brain or encephalon The hindbrain or rhombencephalon; The midbrain or mesencephalon; The forebrain or prosencephalon; Composition and central connections of the spinal nerves; Pathways from the brain to the spinal cord
The enteric nervous system functions to control the gastrointestinal system. Nerves that exit from the brain are called cranial nerves while those exiting from the spinal cord are called spinal nerves. The nervous system consists of nervous tissue which, at a cellular level, is defined by the presence of a special type of cell, called the ...
The olfactory system is the sensory system used for olfaction, or the sense of smell. It detects volatile, airborne substances. It detects volatile, airborne substances. Most sensory systems spatially segregate afferent input from primary sensory neurons to construct a topographic map that defines the location of a sensory stimulus within the ...
Nervous tissue, also called neural tissue, is the main tissue component of the nervous system.The nervous system regulates and controls body functions and activity. It consists of two parts: the central nervous system (CNS) comprising the brain and spinal cord, and the peripheral nervous system (PNS) comprising the branching peripheral nerves.
Internal anatomy of a spider, showing the nervous system in blue. Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve cord made up of two parallel connectives running along the length of the belly. [25]